ben-manes commented on code in PR #6364:
URL: https://github.com/apache/nifi/pull/6364#discussion_r983930495
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nifi-nar-bundles/nifi-standard-bundle/nifi-standard-processors/src/main/java/org/apache/nifi/processors/standard/LookupRecord.java:
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@@ -548,8 +577,15 @@ public Set<Relationship> lookup(final Record record, final
ProcessContext contex
final FlowFile flowFile = lookupContext.getOriginalFlowFile();
final Optional<?> lookupValueOption;
+ final Optional<?> lookupValueCacheOption;
+
try {
- lookupValueOption = lookupService.lookup(lookupCoordinates,
flowFile.getAttributes());
+ lookupValueCacheOption = (Optional<?>)
cache.get(lookupCoordinates, k -> null);
Review Comment:
fyi, you can use `cache.getIfPresent(key)` to lookup or return null. Of
course if possible it is preferred to compute within the cache to avoid a cache
stampede.
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